INFINITI QX60 Dome Light Bulb Size

Additional Notes

• The 12961 is a Philips-designated part number for a miniature wedge bulb in the T10 form factor, operating at 12 volts and rated at 5 watts, with a W2.1x9.5d base configuration.
• The 168 is an ANSI-standardized bulb designation used across the United States and Canada, also a T10 miniature wedge type, rated at 12 volts and 4.9 watts.
• Both the 168 and 12961 share the T10 miniature wedge form factor, though they carry a slight wattage difference of 0.1 watts between them.
• The W2.1x9.5d base designation on the 12961 describes the physical wedge base interface, where the numeric values refer to the pin width and contact spacing of the bulb's base.
• The Infiniti QX60 used the 12961 bulb for its dome light across the 2014-2018 model years, representing the dominant fitment within these specifications.
• The 2019 Infiniti QX60 specifies the 168 bulb for the dome light position, which differs from the 12961 used in prior model years despite both being T10 wedge types.
• The 2016 model year carries a production date qualifier, with the 12961 specification applying only to vehicles produced through August 2016, indicating a mid-cycle change occurred within that model year.
• Because the 168 and 12961 are both T10 wedge bulbs, physical fitment across model years may be possible, but the wattage and part number distinctions suggest they are not officially interchangeable per these specifications.